WO2001043489A3 - Miniature microphone - Google Patents

Miniature microphone Download PDF

Info

Publication number
WO2001043489A3
WO2001043489A3 PCT/US2000/042649 US0042649W WO0143489A3 WO 2001043489 A3 WO2001043489 A3 WO 2001043489A3 US 0042649 W US0042649 W US 0042649W WO 0143489 A3 WO0143489 A3 WO 0143489A3
Authority
WO
WIPO (PCT)
Prior art keywords
membrane
backplates
sound
inlet
backplate
Prior art date
Application number
PCT/US2000/042649
Other languages
French (fr)
Other versions
WO2001043489A2 (en
Inventor
Zacharias M Rittersma
Alwin Fransen
Henk Dolleman
Original Assignee
Microtronic Us Inc
Zacharias M Rittersma
Alwin Fransen
Henk Dolleman
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Microtronic Us Inc, Zacharias M Rittersma, Alwin Fransen, Henk Dolleman filed Critical Microtronic Us Inc
Priority to US10/149,215 priority Critical patent/US7043035B2/en
Priority to AU45204/01A priority patent/AU4520401A/en
Priority to EP00992669A priority patent/EP1254585A4/en
Publication of WO2001043489A2 publication Critical patent/WO2001043489A2/en
Publication of WO2001043489A3 publication Critical patent/WO2001043489A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2217/00—Details of magnetostrictive, piezoelectric, or electrostrictive transducers covered by H04R15/00 or H04R17/00 but not provided for in any of their subgroups
    • H04R2217/01—Non-planar magnetostrictive, piezoelectric or electrostrictive benders

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

A microphone for converting sound into an electrical signal includes a generally cylindrical housing (12) including an inlet (14) for receiving sound, an inner backplate (16), and an outer backplate (18). The inner and outer backplates are generally cylindrical and substantially concentric with each other. A cylindrical membrane is disposed between the inner and outer backplates. The membrane divides an interior of said housing into a front volume and a back volume. The front volume is in direct communication with the inlet. The backplates and/or the membrane are charged. Electronics are included for detecting movement of the relative to the inner and outer backplates in response to the membrane moving when subjected to the sound. The backplates and membrane may be of a shape that approximates a cylinder, such as those that have a hexagonal or octagonal cross-section.
PCT/US2000/042649 1999-12-09 2000-12-07 Miniature microphone WO2001043489A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US10/149,215 US7043035B2 (en) 1999-12-09 2000-12-07 Miniature microphone
AU45204/01A AU4520401A (en) 1999-12-09 2000-12-07 Miniature microphone
EP00992669A EP1254585A4 (en) 1999-12-09 2000-12-07 Miniature microphone

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16988199P 1999-12-09 1999-12-09
US60/169,881 1999-12-09

Publications (2)

Publication Number Publication Date
WO2001043489A2 WO2001043489A2 (en) 2001-06-14
WO2001043489A3 true WO2001043489A3 (en) 2002-01-10

Family

ID=22617599

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/042649 WO2001043489A2 (en) 1999-12-09 2000-12-07 Miniature microphone

Country Status (4)

Country Link
US (1) US7043035B2 (en)
EP (1) EP1254585A4 (en)
AU (1) AU4520401A (en)
WO (1) WO2001043489A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1254585A4 (en) 1999-12-09 2008-10-29 Sonionmicrotronic Nederland Miniature microphone
US7136496B2 (en) 2001-04-18 2006-11-14 Sonion Nederland B.V. Electret assembly for a microphone having a backplate with improved charge stability
US7062058B2 (en) 2001-04-18 2006-06-13 Sonion Nederland B.V. Cylindrical microphone having an electret assembly in the end cover
US7239714B2 (en) 2001-10-09 2007-07-03 Sonion Nederland B.V. Microphone having a flexible printed circuit board for mounting components
US8280082B2 (en) 2002-10-08 2012-10-02 Sonion Nederland B.V. Electret assembly for a microphone having a backplate with improved charge stability
WO2005067653A2 (en) * 2004-01-07 2005-07-28 Logitech Europe S.A. Porous solid wind screen for microphone
EP1613125A3 (en) * 2004-07-02 2008-10-22 Sonion Nederland B.V. Microphone assembly comprising magnetically activable element for signal switching and field indication
JP4698320B2 (en) * 2005-07-26 2011-06-08 株式会社オーディオテクニカ Condenser microphone unit and condenser microphone
WO2010135280A2 (en) * 2009-05-18 2010-11-25 Knowles Electronics, Llc Microphone having reduced vibration sensitivity
TWI474723B (en) * 2009-09-18 2015-02-21 Voice receiver and the electronic device using the same
JP6245989B2 (en) * 2011-03-04 2017-12-13 Tdk株式会社 Method for positioning a membrane between a microphone and two backplates
CN114286269A (en) * 2021-12-27 2022-04-05 惠州帝红商贸发展有限公司 Infrasonic wave microphone

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490236A (en) * 1947-06-17 1949-12-06 Brush Dev Co Piezoelectric transducer
US3068446A (en) * 1958-08-21 1962-12-11 Stanley L Ehrlich Tubular electrostrictive transducer with spaced electrodes and loading masses
US4903308A (en) * 1988-02-10 1990-02-20 Linaeum Corporation Audio transducer with controlled flexibility diaphragm
US5828766A (en) * 1994-12-15 1998-10-27 Anthony Gallo Acoustics, Inc. Acoustic speaker system

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US2767387A (en) * 1950-04-05 1956-10-16 Clevite Corp Cylindrical electro-mechanical transducer
US3859477A (en) * 1971-06-24 1975-01-07 Tesla Np Electrostatic transducer
IT1066823B (en) * 1975-12-30 1985-03-12 Sits Soc It Telecom Siemens ELECTROACOUSTIC TRANSDUCER PARTICULARLY OF THE PIEZOCERAMIC LAMINA TYPE
DE3329473A1 (en) * 1983-08-16 1985-03-07 Toepholm & Westermann, Vaerloese HOER DEVICE TO WEAR ON THE EAR
CH662026A5 (en) * 1984-02-21 1987-08-31 Gfeller Ag IN-THE-EAR HOER DEVICE.
JPS60244199A (en) * 1984-05-18 1985-12-04 Mitsubishi Electric Corp Electroacoustic transducer
JPS60244198A (en) * 1984-05-18 1985-12-04 Mitsubishi Electric Corp Electroacoustic transducer
AT380762B (en) * 1984-08-06 1986-07-10 Viennatone Gmbh HOERGERAET
DE3501481A1 (en) * 1985-01-18 1986-07-24 Robert Bosch Gmbh, 7000 Stuttgart ELECTRONIC HOERING DEVICE
DE8518681U1 (en) * 1985-06-27 1986-06-12 Siemens AG, 1000 Berlin und 8000 München Hearing aid
US4764690A (en) * 1986-06-18 1988-08-16 Lectret S.A. Electret transducing
US4852177A (en) * 1986-08-28 1989-07-25 Sensesonics, Inc. High fidelity earphone and hearing aid
US4850023A (en) * 1986-12-22 1989-07-18 Yarush Donald J Universal listening device
DE8814162U1 (de) * 1988-11-11 1988-12-29 Hörgeräte Geers GmbH & Co. KG, 4600 Dortmund Hörgerät
JPH02149199A (en) * 1988-11-30 1990-06-07 Matsushita Electric Ind Co Ltd Electlet condenser microphone
US4993072A (en) * 1989-02-24 1991-02-12 Lectret S.A. Shielded electret transducer and method of making the same
US5220612A (en) * 1991-12-20 1993-06-15 Tibbetts Industries, Inc. Non-occludable transducers for in-the-ear applications
US5335286A (en) * 1992-02-18 1994-08-02 Knowles Electronics, Inc. Electret assembly
US5408534A (en) * 1992-03-05 1995-04-18 Knowles Electronics, Inc. Electret microphone assembly, and method of manufacturer
US5373555A (en) * 1992-05-11 1994-12-13 Jabra Corporation Unidirectional ear microphone and gasket
DE59409849D1 (en) * 1993-06-11 2001-10-11 Ascom Audiosys Ag Flamatt Hearing aid to be worn in the ear and process for its manufacture
US5548658A (en) * 1994-06-06 1996-08-20 Knowles Electronics, Inc. Acoustic Transducer
US5570428A (en) * 1994-09-27 1996-10-29 Tibbetts Industries, Inc. Transducer assembly
GB9505003D0 (en) * 1995-03-11 1995-04-26 Whitaker Corp "Acoustic transducer"
US5881158A (en) * 1996-05-24 1999-03-09 United States Surgical Corporation Microphones for an implantable hearing aid
US5859916A (en) * 1996-07-12 1999-01-12 Symphonix Devices, Inc. Two stage implantable microphone
US5740261A (en) * 1996-11-21 1998-04-14 Knowles Electronics, Inc. Miniature silicon condenser microphone
US5878147A (en) * 1996-12-31 1999-03-02 Etymotic Research, Inc. Directional microphone assembly
US6201874B1 (en) * 1998-12-07 2001-03-13 American Technology Corporation Electrostatic transducer with nonplanar configured diaphragm
JPH11266499A (en) 1998-03-18 1999-09-28 Hosiden Corp Electret condenser microphone
JP3375284B2 (en) 1998-07-24 2003-02-10 ホシデン株式会社 Electret condenser microphone
JP2002534933A (en) 1999-01-07 2002-10-15 サーノフ コーポレイション Hearing aid with large diaphragm microphone element with printed circuit board
AT407322B (en) * 1999-03-23 2001-02-26 Akg Acoustics Gmbh SMALL MICROPHONE
EP1254585A4 (en) 1999-12-09 2008-10-29 Sonionmicrotronic Nederland Miniature microphone

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490236A (en) * 1947-06-17 1949-12-06 Brush Dev Co Piezoelectric transducer
US3068446A (en) * 1958-08-21 1962-12-11 Stanley L Ehrlich Tubular electrostrictive transducer with spaced electrodes and loading masses
US4903308A (en) * 1988-02-10 1990-02-20 Linaeum Corporation Audio transducer with controlled flexibility diaphragm
US5828766A (en) * 1994-12-15 1998-10-27 Anthony Gallo Acoustics, Inc. Acoustic speaker system

Also Published As

Publication number Publication date
EP1254585A2 (en) 2002-11-06
US7043035B2 (en) 2006-05-09
US20030103639A1 (en) 2003-06-05
AU4520401A (en) 2001-06-18
WO2001043489A2 (en) 2001-06-14
EP1254585A4 (en) 2008-10-29

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